The physiology of the circulation in plants : in the lower animals, and in man : being a course of lectures delivered at surgeons' hall to the president, fellows, etc of the Royal college of surgeons of Edinburgh, in the summer of 1872 . r. Fig. 56.—Diagram of the course pursued by the blood in the foetal heart, y, Superiorc wa, the blood from which passes into the right auricle ; thence into the right ventricle (g);thence into the pulmonary artery (u); and thence into the ascending (u) and descendingaorta, (m). o. Inferior cava, the blood from which passes behind the Eustachian valve (s ofFig
The physiology of the circulation in plants : in the lower animals, and in man : being a course of lectures delivered at surgeons' hall to the president, fellows, etc of the Royal college of surgeons of Edinburgh, in the summer of 1872 . r. Fig. 56.—Diagram of the course pursued by the blood in the foetal heart, y, Superiorc wa, the blood from which passes into the right auricle ; thence into the right ventricle (g);thence into the pulmonary artery (u); and thence into the ascending (u) and descendingaorta, (m). o. Inferior cava, the blood from which passes behind the Eustachian valve (s ofFig. 57, A), through the foramen ovale, to the left auricle; thence to the left ventricle (r);and thence to the ascending (u) and descending (m) aorta, u, Arch of aorta and its branches.—(Compare with similar letters of Fig. 57, A.) 1 In the foetus in iitero, the pulmonary organs take no part in the aeration ofthe hlood. They are ready for work, but, being unexpanded, are probabilities are, that the lungs, towards the full term, perform rhythmicmovements in anticipation of the function to be performed by them after birth,in the same way that the heart pulsates while yet a solid mass and before itcontains 104 DR J. BELL PETTIGREW ON THE. The peculiarities of the circulation within the body of the fcetusare shown at Fig. 57, A; those of the circulation within the placenta,at Fig. 57, B (vide arrows). Fig. 57.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectblo, booksubjectblood
